Matter

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Across
  1. 1. is a measure of the gravitational force
  2. 3. property a characteristic of a substance that can be observed and measured without changing the identity of the substance
  3. 5. property describes a substance ability to change into a new substance with different properties
  4. 7. is the amount of space that matter in an object
  5. 10. measure of the amount of matter in a given amount of time
  6. 11. anything that has mass
  7. 12. are subatomic particles that have a positive electric charge
  8. 13. describes the amount of matter in an object
Down
  1. 2. particles are far apart and move freely
  2. 4. particles are close together and can slide past each
  3. 6. are basic building blocks of matter
  4. 8. negatively charged and are much smaller than protons and neutrons
  5. 9. have no charge